Game should stop after getting in final state

[ch5oh]

Currently after getting stalemate by repetition (and result 1/2-1/2) it is possible to press 'Think' button. Then computer player will make next move and the game continues.

I feel this is very wrong behaviour: the game should fully stop after getting in final states such as checkmate and stalemate.

[jmasukawa]

This actually occurs for all special stalemate scenarios (fifty rule, etc.)

[ddugovic]

FIDE (and USCF) chess rules allow either player to claim a threefold repetition draw. However, that doesn't mandate that all threefold repetitions must be draws: until either player correctly claims a draw, both can keep playing. Ditto for the 50-move rule.

If a player wants to continue playing, why shouldn't the computer player be friendly and oblige? Maybe there's a reason, but I'm not seeing it.

[jmasukawa]

hmm I see your point. I don't think it's necessarily wrong then, but as an improvement, maybe the computer should determine whether it thinks it should claim a draw if it is in the computer's favor?

[ddugovic]

I agree, several improvements could be made:

1. When it favors the AI to do so, the AI should claim a draw.
2. The AI should foresee drawing possibilities and evaluate them properly (whether the AI is winning, drawing, or losing).

[jmasukawa]

^sounds good.